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Episode 01: American AlienEpisode 02: FalloutEpisode 03: Man of SteelEpisode 04: AhimsaEpisode 05: Parasite LostEpisode 06: Call to ActionEpisode 07: Rather the Fallen AngelEpisode 08: Bunker HillEpisode 09: Elseworlds, Part 3Episode 10: Suspicious MindsEpisode 11: Blood MemoryEpisode 12: MenagerieEpisode 13: What's So Funny About Truth, Justice, and the American Way?Episode 14: Stand and DeliverEpisode 15: O Brother, Where Art Thou?Episode 16: The House of LEpisode 17: All About EveEpisode 18: Crime and PunishmentEpisode 19: American DreamerEpisode 20: Will The Real Miss Tessmacher Please Stand Up?Episode 21: Red DawnEpisode 22: The Quest for PeaceSupergirl S04E22Available from: 19-05-2019Supergirl S04E21Available from: 12-05-2019Supergirl S04E20Available from: 05-05-2019Supergirl S04E19Available from: 28-04-2019Supergirl S04E18Available from: 21-04-2019Supergirl S04E17Available from: 31-03-2019Supergirl S04E16Available from: 24-03-2019Supergirl S04E15Available from: 17-03-2019Supergirl S04E14Available from: 10-03-2019Supergirl S04E13Available from: 03-03-2019Supergirl S04E12Available from: 17-02-2019Supergirl S04E11Available from: 27-01-2019Supergirl S04E10Available from: 20-01-2019Supergirl S04E09Available from: 11-12-2018Supergirl S04E08Available from: 02-12-2018Supergirl S04E07Available from: 25-11-2018Supergirl S04E06Available from: 18-11-2018Supergirl S04E05Available from: 11-11-2018Supergirl S04E04Available from: 04-11-2018Supergirl S04E03Available from: 28-10-2018Supergirl S04E02Available from: 21-10-2018Supergirl S04E01Available from: 14-10-2018
Supergirl - Season 4, Episode 01: American AlienSupergirl is called into action when remnants of Cadmus attempt to assassinate pro-alien leaders, but their endgame turns out to be more sinister than she thinks.
Actors of "Supergirl - Season 4"More actors
Characters of "Supergirl - Season 4"
Critic Reviews of "Supergirl - Season 4"CBROctober 14, 2018
The jig is up!CinemaBlendOctober 14, 2018
If a seemingly evil Supergirl emerges and begins using the same powers Supergirl has to wreak havoc, paranoid humans could begin to consider Supergirl an enemy as well. Kara is going to need all the help she can get in Season 4.TV FanaticOctober 14, 2018
"Alien lives matter" will undoubtedly be utilized as a slogan at some point this season as things get more political.Den of GeekOctober 14, 2018
Supergirl season four opens with a great episode that encapsulates so much of what the show does best that's both solid in its own right and sows the seeds of a season's worth of conflict.AV ClubOctober 14, 2018
"American Alien" feels like a culmination of where Supergirl has been headed for a long time.IGN MoviesOctober 14, 2018
After a disappointing finish to a generally underwhelming Season 3, it's good to see Supergirl quickly bouncing back this week. "American Alien" sets the stage for a promising conflict to come.
Gallery of "Supergirl - Season 4"